I have had the AC180 for a few weeks and it was working fine until the temp light came on with AC outlet about 1500 watts and it would not charge, The BMS fault code came up as EO74 BMS error. I have since got charge and updated BMS, my concern is that the fan was not running when using ac before the update and now it is,
Does anyone know if I had an original fault of no fan which caused the temp error, and now it is updated it is normal for the fan to come on with AC. The unit is working ok but I am not sure if I can rely on it if it is not operating correctly. I am having trouble getting any answers from Bluetti.
So, I have an AC2A and last night while I was using my mini CPAP I noticed that it was shutting down power flow to the AC side causing my CPAP to fail. Once the error cleared it would begin functioning again. This happened a dozen times before i finally switched over to the other brand generator I also have.
When I looked up the error, it showed the E074 code and while researching I found this thread.
Here’s my configuration:
AC2A connected to the AC port of a different brand but higher capacity solar generator. Effiectively putting it in “Grid Mode”.
Firmware and software all up to date as of today’s date according to the app.
Temprature inside the Jeep that i was sleeping in was 40F-46F. These temps weren’t even that extreme.
One thing I do notice is that while in pass through mode there is 000w showing on input and output of my unit. (Is the AC2A incapable of measuring flow through it while in “grid” mode?)
